Sahih Muslim Book - 6, Hadith - 1834

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِى شَيْبَةَ وَأَبُو كُرَيْبٍ قَالَ حَدَّثَنَا أَبُو أُسَامَةَ عَنْ هِشَامِ بْنِ عُرْوَةَ ح وَحَدَّثَنِى زُهَيْرُ بْنُ حَرْبٍ - وَاللَّفْظُ لَهُ - حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ هِشَامٍ قَالَ أَخْبَرَنِى أَبِى عَنْ عَائِشَةَ قَالَتْ دَخَلَ عَلَىَّ رَسُولُ اللَّهِ -صلى الله عليه وسلم- وَعِنْدِى امْرَأَةٌ فَقَالَ « مَنْ هَذِهِ ». فَقُلْتُ امْرَأَةٌ لاَ تَنَامُ تُصَلِّى. قَالَ « عَلَيْكُمْ مِنَ الْعَمَلِ مَا تُطِيقُونَ فَوَاللَّهِ لاَ يَمَلُّ اللَّهُ حَتَّى تَمَلُّوا ». وَكَانَ أَحَبَّ الدِّينِ إِلَيْهِ مَا دَاوَمَ عَلَيْهِ صَاحِبُهُ وَفِى حَدِيثِ أَبِى أُسَامَةَ أَنَّهَا امْرَأَةٌ مِنْ بَنِى أَسَدٍ.

It was narrated that 'Aishah said: "The Messenger of Allah (s.a.w) entered upon me and there was a woman with me. He said: 'Who is this?' I said: 'It is a woman who does not sleep, she prays.' He said: 'You should do what you are able to, for by Allah, Allah does not grow weary but you do.' And the most beloved of religious practices to him was that in which a person persisted." According to the Hadith of Abu Usamah: "It was a woman from Banu Asad."